<!doctype html>
<html lang="en">
<head>
	<meta charset="UTF-8" />
	<title>Document</title>
	<script src="js/vue.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
	<div id="app" v-bind:class="[activeClass,errorClass]">
		
	</div>
</body>
<script type="text/javascript">
	var vm = new Vue({
		el:"#app",
		data:{
			activeClass:'active',
			errorClass:'text-danger'
		}
	})
</script>
</html>